diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index b5e53b9ab1f7b5e25f2678ba51740de6665ad384..e038f13594e502d6582a77f2aef907f1d79cdcea 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -9,15 +9,6 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; #define per_cpu_offset(x) (__per_cpu_offset[x]) -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __typeof__(type) per_cpu__##name \ - ____cacheline_aligned_in_smp - /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*({ \ extern int simple_identifier_##var(void); \ @@ -35,12 +26,6 @@ do { \ } while (0) #else /* ! SMP */ -#define DEFINE_PER_CPU(type, name) \ - __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - DEFINE_PER_CPU(type, name) - #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var #define __raw_get_cpu_var(var) per_cpu__##var @@ -49,7 +34,4 @@ do { \ #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - #endif /* _ASM_GENERIC_PERCPU_H_ */ diff --git a/include/asm-ia64/percpu.h b/include/asm-ia64/percpu.h index c4f1e328a5ba845f0635e42f0669b137369a604d..0095bcf798484d0988ff086bc0c5d0a167cd08ab 100644 --- a/include/asm-ia64/percpu.h +++ b/include/asm-ia64/percpu.h @@ -16,28 +16,11 @@ #include #ifdef HAVE_MODEL_SMALL_ATTRIBUTE -# define __SMALL_ADDR_AREA __attribute__((__model__ (__small__))) -#else -# define __SMALL_ADDR_AREA +# define PER_CPU_ATTRIBUTES __attribute__((__model__ (__small__))) #endif #define DECLARE_PER_CPU(type, name) \ - extern __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name - -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) \ - __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name - -#ifdef CONFIG_SMP -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name \ - ____cacheline_aligned_in_smp -#else -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - DEFINE_PER_CPU(type, name) -#endif + extern PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name /* * Pretty much a literal copy of asm-generic/percpu.h, except that percpu_modcopy() is an @@ -68,9 +51,6 @@ extern void *per_cpu_init(void); #endif /* SMP */ -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - /* * Be extremely careful when taking the address of this variable! Due to virtual * remapping, it is different from the canonical address returned by __get_cpu_var(var)! diff --git a/include/asm-powerpc/percpu.h b/include/asm-powerpc/percpu.h index 6b229626d3ff8a483a7875068ffcdf3dd29fff08..cc1cbf656b02f343e60199c79ec50fb26cb53665 100644 --- a/include/asm-powerpc/percpu.h +++ b/include/asm-powerpc/percpu.h @@ -16,15 +16,6 @@ #define __my_cpu_offset() get_paca()->data_offset #define per_cpu_offset(x) (__per_cpu_offset(x)) -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __typeof__(type) per_cpu__##name \ - ____cacheline_aligned_in_smp - /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu))) #define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __my_cpu_offset())) @@ -43,11 +34,6 @@ extern void setup_per_cpu_areas(void); #else /* ! SMP */ -#define DEFINE_PER_CPU(type, name) \ - __typeof__(type) per_cpu__##name -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - DEFINE_PER_CPU(type, name) - #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var #define __raw_get_cpu_var(var) per_cpu__##var @@ -56,9 +42,6 @@ extern void setup_per_cpu_areas(void); #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - #else #include #endif diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h index f94d0d3cdb2fa2311d256eabd02670bfa92f7b74..2d676a873858cf599fbc1b679e6ceccd6a112fc3 100644 --- a/include/asm-s390/percpu.h +++ b/include/asm-s390/percpu.h @@ -34,16 +34,6 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) \ - __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __typeof__(type) per_cpu__##name \ - ____cacheline_aligned_in_smp - #define __get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset) #define __raw_get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset) #define per_cpu(var,cpu) __reloc_hide(var,__per_cpu_offset[cpu]) @@ -60,11 +50,6 @@ do { \ #else /* ! SMP */ -#define DEFINE_PER_CPU(type, name) \ - __typeof__(type) per_cpu__##name -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - DEFINE_PER_CPU(type, name) - #define __get_cpu_var(var) __reloc_hide(var,0) #define __raw_get_cpu_var(var) __reloc_hide(var,0) #define per_cpu(var,cpu) __reloc_hide(var,0) @@ -73,7 +58,4 @@ do { \ #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - #endif /* __ARCH_S390_PERCPU__ */ diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h index a1f53a4da405dd7496bee581e88a609a57455756..c7e52decba9863e5e821872d293f6f79b4fc7ec2 100644 --- a/include/asm-sparc64/percpu.h +++ b/include/asm-sparc64/percpu.h @@ -16,15 +16,6 @@ extern unsigned long __per_cpu_shift; (__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift)) #define per_cpu_offset(x) (__per_cpu_offset(x)) -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __typeof__(type) per_cpu__##name \ - ____cacheline_aligned_in_smp - /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu))) #define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __local_per_cpu_offset)) @@ -41,10 +32,6 @@ do { \ #else /* ! SMP */ #define real_setup_per_cpu_areas() do { } while (0) -#define DEFINE_PER_CPU(type, name) \ - __typeof__(type) per_cpu__##name -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - DEFINE_PER_CPU(type, name) #define per_cpu(var, cpu) (*((void)cpu, &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var @@ -54,7 +41,4 @@ do { \ #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - #endif /* __ARCH_SPARC64_PERCPU__ */ diff --git a/include/asm-x86/percpu_32.h b/include/asm-x86/percpu_32.h index 3949586bf94ef64f970be96876dbc07b8f5f41dc..77bd0045f331a4058f32daa136b9113e619786f1 100644 --- a/include/asm-x86/percpu_32.h +++ b/include/asm-x86/percpu_32.h @@ -47,16 +47,7 @@ extern unsigned long __per_cpu_offset[]; #define per_cpu_offset(x) (__per_cpu_offset[x]) -/* Separate out the type, so (int[3], foo) works. */ #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __typeof__(type) per_cpu__##name \ - ____cacheline_aligned_in_smp - /* We can use this directly for local CPU (faster). */ DECLARE_PER_CPU(unsigned long, this_cpu_off); @@ -81,9 +72,6 @@ do { \ (src), (size)); \ } while (0) -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - /* fs segment starts at (positive) offset == __per_cpu_offset[cpu] */ #define __percpu_seg "%%fs:" #else /* !SMP */ diff --git a/include/asm-x86/percpu_64.h b/include/asm-x86/percpu_64.h index 5abd48270101e9e11f1540b3084bd69cb2e5c573..24fe7075248d24230de5326289c482724a9054b7 100644 --- a/include/asm-x86/percpu_64.h +++ b/include/asm-x86/percpu_64.h @@ -16,15 +16,6 @@ #define per_cpu_offset(x) (__per_cpu_offset(x)) -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name - -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - __attribute__((__section__(".data.percpu.shared_aligned"))) \ - __typeof__(type) per_cpu__##name \ - ____cacheline_internodealigned_in_smp - /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*({ \ extern int simple_identifier_##var(void); \ @@ -49,11 +40,6 @@ extern void setup_per_cpu_areas(void); #else /* ! SMP */ -#define DEFINE_PER_CPU(type, name) \ - __typeof__(type) per_cpu__##name -#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ - DEFINE_PER_CPU(type, name) - #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var #define __raw_get_cpu_var(var) per_cpu__##var @@ -62,7 +48,4 @@ extern void setup_per_cpu_areas(void); #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - #endif /* _ASM_X8664_PERCPU_H_ */ diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 926adaae0f9610885d5d64e341410a9b96900312..00412bb494c40b100bc1e996983b72ba877ccf69 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -9,6 +9,30 @@ #include +#ifndef PER_CPU_ATTRIBUTES +#define PER_CPU_ATTRIBUTES +#endif + +#ifdef CONFIG_SMP +#define DEFINE_PER_CPU(type, name) \ + __attribute__((__section__(".data.percpu"))) \ + PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name + +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name \ + ____cacheline_aligned_in_smp +#else +#define DEFINE_PER_CPU(type, name) \ + PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name + +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + DEFINE_PER_CPU(type, name) +#endif + +#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) +#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) + /* Enough to cover all DEFINE_PER_CPUs in kernel, including modules. */ #ifndef PERCPU_ENOUGH_ROOM #ifdef CONFIG_MODULES